Patent US4067071A successfully refreshed from Google Patents.
US4067071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bathtub, wall and ceiling liner assembly
Assignee: Thermasol Ltd
•
Filing: 1976-06-10
•
Granted: 1978-01-10
•
Expires: 1996-06-10
Abstract
Abstract A combination liner assembly for bathtub, walls and ceiling is provided for renovating a worn or outmoded bathtub installed in a wall recess. The assembly includes a plastic bathtub-shaped liner having a tub portion sized to be seated in the tub cavity of the bathtub with the bottom surface of the tub portion resting upon the bottom surface of the original tub cavity and said bottom surface supporting the weight of the liner as well as the water and the bather therein. The bathtub liner is connected to the waste and overflow drains of the original bathtub and has an outwardly projecting peripheral flange around the top edge thereof which overlies the marginal ledges of the bathtub. Sealing membranes provide water-tight seals between the peripheral flange of the bathtub liner and the walls of the wall recess. The assembly also includes a matching wall liner which covers the walls of the recess above the bathtub liner. The wall liner may be topped by a dome, which rests on an outwardly-extending flange.
Inventors
- 👤 Murray Altman
- 👤 Richard Altman
- 👤 Arthur Roberts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:31
CPC Classifications
A; A47; A47K; A47K3/00; A47K3/008; A47K3/001; A47K3/02; A47K3/04; A47K3/16
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
218 words
Bathtub renovating means for refurbishing an existing bathtub installed in a wall recess and having a tub cavity and marginal ledges extending outwardly from the upper end of said tub cavity, said bathtub renovating means including a bathtub liner formed of a substantially flexible plastic material and comprising a tub portion having a bottom wall and upstanding side and end walls, and peripheral flanges extending perpendicularly outward from the top ends of said side and end walls, the tub portion of said bathtub liner being of lesser length and lesser width than the tub cavity of said bathtub, and being of a height greater than the depth of said tub cavity, whereby said bathtub liner is sized for insertion on said existing bathtub in a mounted position in which said tub portion of said liner is seated within the tub cavity of said bathtub with the bottom wall of said liner resting upon the bottom surface of said tub cavity, at least some of the side and end walls of said liner spaced from the corresponding side and end walls of the tub cavity, the peripheral flanges of said liner overlying the marginal ledges of said bathtub, and the weight of the bathtub liner supported substantially solely by the bottom surface of the cavity of said existing bathtub.
Claim 2
Dependent Claim
218 words
Bathtub renovating means for refurbishing an existing bathtub installed in a wall recess and having a tub cavity and marginal ledges extending outwardly from the upper end of said tub cavity, said bathtub renovating means including a bathtub liner formed of a substantially flexible plastic material and comprising a tub portion having a bottom wall and upstanding side and end walls, and peripheral flanges extending perpendicularly outward from the top ends of said side and end walls, the tub portion of said bathtub liner being of lesser length and lesser width than the tub cavity of said bathtub, and being of a height greater than the depth of said tub cavity, whereby said bathtub liner is sized for insertion on said existing bathtub in a mounted position in which said tub portion of said liner is seated within the tub cavity of said bathtub with the bottom wall of said liner resting upon the bottom surface of said tub cavity, at least some of the side and end walls of said liner spaced from the corresponding side and end walls of the tub cavity, the peripheral flanges of said liner overlying the marginal ledges of said bathtub, and the weight of the bathtub liner supported substantially solely by the bottom surface of the cavity of said existing bathtub.
Claim 3
Dependent Claim
33 words
Bathtub renovating means according to claim 1 in which in the mounted position of said bathtub liner, said peripheral flanges of said liner are spaced above the marginal ledges of said existing bathtub.
Claim 4
Dependent Claim
50 words
Bathtub renovating means according to claim 1 in which in the mounted position of said bathtub liner, the side and end walls of said liner are spaced from the adjacent wall surfaces of said tub cavity to define gaps therebetween, said gaps being filled with a self-aligning fluent filler material.
Claim 5
Dependent Claim
19 words
Bathtub renovating means according to claim 3 in which said filler material is a fractionated material in granular form.
Claim 6
Dependent Claim
17 words
Bathtub renovating means according to claim 3 in which said filler material is a cellular plastic material.
Claim 7
Dependent Claim
18 words
Bathtub renovating means according to claim 3 in which said filler material is a highly filled epoxy resin.
Claim 8
Dependent Claim
20 words
Bathtub renovating means according to claim 1 in which said bathtub liner is formed from a sheet fiberglass reinforced polyester.
Claim 9
Dependent Claim
19 words
Bathtub renovating means according to claim 1 in which said bathtub liner is formed from acrylonitrile-butadiene-styrene in sheet form.
Claim 10
Dependent Claim
50 words
Bathtub renovating means according to claim 1 in which said bathtub liner is formed from a thermoplastic sheet having a fiberglass reinforced polyester layer adhesively attached to the outer surface thereof to reduce the flexibility of said bathtub liner, said outer layer lying against the surface of said existing bathtub.
Claim 11
Dependent Claim
32 words
Bathtub renovating means according to claim 1 which also includes a skirt extending from at least one of the flanges of said bathtub liner downwardly to the floor surface supporting said bathtub.
Claim 12
Dependent Claim
25 words
Bathtub renovating means according to claim 10 in which said skirt has a top flange projecting perpendicularly therefrom and secured to said bathtub liner flange.
Claim 13
Dependent Claim
57 words
Bathtub renovating means according to claim 1 which also includes sealing means between said bathtub liner and said wall recess, said sealing means comprising a flexible plastic membrane secured at one side to at least one surface of each bathtub ledge facing a wall of said recess, and at the other side to the adjacent recess wall.
Claim 14
Dependent Claim
56 words
Bathtub renovating means according to claim 1 in which said wall recess includes a side wall and a pair of opposed end walls and which also includes a wall liner assembly for covering the side and end walls of said wall recess above said bathtub liner, said wall liner assembly being made of plastic sheet material.
Claim 15
Dependent Claim
78 words
Bathtub renovating means according to claim 13 in which said wall liner assembly includes a central section comprising a panel secured flush against the center of said side wall of said wall recess, and a pair of L-shaped side sections, each of said side sections having a first panel secured flush against an end wall of said recess and a second panel disposed perpendicularly to said first panel and secured flush against the side wall of said recess.
Claim 16
Dependent Claim
59 words
Bathtub renovating means according to claim 14 in which each of said liner assembly sections has a top flange disposed perpendicularly thereof and extending outwardly from the recess wall on which said section is mounted, said wall liner assembly also including a dome overlying said bathtub liner and having marginal edge portions overlying said top flanges and supported thereby.
Claim 17
Dependent Claim
41 words
Bathtub renovating means according to claim 15 in which said wall section panels and said dome as formed from thermoplastic sheets having a fiberglass reinforced polyester layer adhesively attached to the outer surface thereof to reduce the flexibility of said sheets.
References Cited (Backward Citations)
US2677268A
Cited
US2853714A
Cited
US3045254A
Cited
US3088124A
Cited
US3614793A
Cited
US3593347A
Cited
US3827086A
Cited
US3931651A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-01-09 | 1981-07-11 | 1982-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-01-09 | 1985-07-11 | 1986-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-01-09 | 1989-07-11 | 1990-01-10 | $7700.00 | Window Closed / Lapsed |